Powerflex Front Sway Bar Bushings - 28mm - Street - E65, E66, E60, E61
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Product Details
Optimizing front-end lateral stability is essential to eliminating mid-corner understeer and establishing a precise tire contact patch on the BMW chassis. The factory front anti-roll bar relies on highly compliant OEM rubber bushings that deflect heavily under cornering loads. This deflection creates a lag in sway bar engagement, leading to excessive body roll and localized slip angles that accelerate front outer tire wear.
The Powerflex Street Series is an engineered polyurethane solution designed specifically for high-performance street applications, spirited canyon driving, and dual-purpose track day vehicles. By utilizing an optimized durometer compound, this component minimizes lateral and vertical deflection at the sway bar mounting point, ensuring immediate torsional resistance from the 28 mm anti-roll bar without introducing harsh cabin resonance.
Performance Data & Mechanical Benefits
Linear Roll Resistance: Maximizes the efficiency of the factory 28 mm sway bar. Turn-in response is immediate, and chassis transition lag during high-speed directional changes is severely reduced.
Optimized Material Compliance (Street Series): Formulated to deliver a 25% to 30% increase in effective stiffness over brand-new factory rubber. This specific compound provides the structural discipline required for performance driving while absorbing high-frequency road harshness.
Geometric Stability: Unlike rubber, which suffers from permanent compression set and atmospheric rot, Powerflex polyurethane retains its exact profile under extreme load cycles, maintaining consistent suspension geometry over the lifespan of the vehicle.
Low-Friction Internal Knurling: Features a cross-hatched internal bore engineered to retain specialized low-friction poly-grease. This prevents the bar from binding during vertical suspension articulation, maintaining predictable spring rates.
Prop 65 Warning
